NASA | X-ray 'Echoes' Probe Habitat of Monster Black Hole

The video discusses NGC 4151, focusing on its central black hole and surrounding accretion disk. Scientists using the XMM Newton X-ray satellite discovered that X-ray flares occur above the disk. These flares illuminate the inner disk after a delay, providing the first clear measurement of this effect. This discovery helps in understanding the spatial arrangement of the flares and the disk. Future X-ray telescope missions aim to use these flares to map the surroundings of distant black holes more precisely.

What is the dark object in the middle of NGC 4151?

Describe the structure and composition of the accretion disk surrounding the black hole.

What did scientists using the XMM Newton X Ray satellite discover about the source of x-ray flares?

Explain the significance of the delay observed between the x-ray flares and the lighting up of the inner accretion disk.

How will future X Ray telescope missions utilize the echoes from x-ray flares?